Product overview
Description
The L6565 is a current-mode primary controller IC, specifically designed to build offline Quasi-resonant ZVS (Zero Voltage Switching at switch turn-on) flyback converters. Quasi-resonant operation is achieved by means of a transformer demagnetization sensing input that triggers MOSFET's turn-on.Converter's power capability variations with the mains voltage are compensated by line voltage feedforward. At light load the device features a special function that automatically lowers the operating frequency still maintaining the operation as close to ZVS as possible. In addition to very low start-up and quiescent currents, this feature helps keep low the consumption from the mains at light load and be Blue Angel and Energy Star compliant.
The IC includes also a disable function, an on-chip filter on current sense, an error amplifier with a precise reference voltage for primary regulation and an effective two-level overcurrent protection.
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All features
- TV/MONITOR SMPS
- BLUE ANGEL, ENERGY STAR, ENERGY 2000 COMPLIANT
- DIGITAL CONSUMER
- AC-DC ADAPTERS/CHARGERS
- PRINTERS, FAX MACHINES, PHOTOCOPIERS AND SCANNERS
- 1% PRECISION (@ Tj = 25˚C) INTERNAL REFERENCE VOLTAGE
- DISABLE FUNCTION (ON/OFF CONTROL)
- QUASI-RESONANT (QR) ZERO-VOLTAGE-SWITCHING (ZVS) TOPOLOGY
- FREQUENCY FOLDBACK FOR OPTIMUM STANDBY EFFICIENCY
- LINE FEED FORWARD TO DELIVER CONSTANT POWER vs. MAINS CHANGE
- ULTRA-LOW START-UP (< 70µA) AND QUIESCENT CURRENT (< 3.5mA)
- ±400mA TOTEM POLE GATE DRIVER WITH UVLO PULL-DOWN
- PULSE-BY-PULSE & HICCUP-MODE OCP
Featured Videos
All resources
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Product Specifications (1)
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|---|---|---|---|---|
| 19 Sep 2016 | 19 Sep 2016 |
Application Notes (5 of 8)
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| 13 Sep 2018 | 13 Sep 2018 | |||
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| 17 Mar 2021 | 17 Mar 2021 | |||
| 13 Sep 2018 | 13 Sep 2018 | |||
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| 13 Sep 2018 | 13 Sep 2018 | |||
| 13 Sep 2018 | 13 Sep 2018 | |||
| 13 Sep 2018 | 13 Sep 2018 |
Design Notes & Tips (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 25 Jul 2018 | 25 Jul 2018 |
Presentations (1)
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| 21 Jun 2018 | 21 Jun 2018 |
Brochures (2)
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| 23 Mar 2020 | 23 Mar 2020 | |||
| 07 Apr 2021 | 07 Apr 2021 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - L6565
Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.
Symbols
Footprints
3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6565D | Active | SO-8 | Industrial | Ecopack2 (**) | |
| L6565DTR | Active | SO-8 | Industrial | Ecopack2 (**) | |
| L6565N | Active | DIP-8 | Industrial | Ecopack2 | |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L6565D | 4 distributors | Buy Direct | Active | EAR99 | NEC | Tube | SO-8 | - | - | MOROCCO | 0.32 / 1k | |
| L6565N | 4 distributors | Buy Direct | Active | EAR99 | NEC | Tube | DIP-8 | - | - | CHINA | 0.32 / 1k | |
| L6565DTR | 3 distributors | Buy Direct | Active | EAR99 | NEC | Tape And Reel | SO-8 | - | - | MOROCCO | 0.32 / 1k | |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
